Vulcanizing device



Jan. 10, 1928. w 1,656,071

A. F. LEW

VULCANIZING DEVICE Filed Dec. 11 1925 ATTORNEY WITNESS:

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ill ll Patented Jam 10, 192&

UNITED STATES ALBERT 1i. LEW, 0F BAKER, tlllitlllltittlftll V'U'L(3..E1NIEIING neuron.

Application flied Ilecember 1ft,

The object of this invention is to provide means for vulcanizing tiretubes, especially Where splices or uneven surfaces are en countered .llrfurther object is to provide a vulcanizing device With an elementutter-ding an air chamber, in order that both mechanical pressure andtluid pressure may be available.

rt turther object is to provide, in a dev ce of this type, on upperblock with tlezrible airprooit Walls defining an air chamber adapted todistribute the pressure evenly over that portion oil the worlr which ata given time may be on the heated vi'llcaniaing cleinent.

l llith the foregoing and other objects in viinv the invention consistsin the novel construction and arrangement oi elements described,illustrated and claimed, it being understood that inodilications may hemade Within the scope of the claini Without de parting from the spiritof the invention.

in the drawings :torining part oi this applicatioi'i.

it igure 1 shows the device in elevatioi'i and in longitudinal section"li ipgure it is a view in e'alevation l'roui iniotlier angle.

The lower bloclt, on which the work rests, and which is adapted to beheated, is designated lit, and the tube to be repaired is placed on theblock 10 with the damaged portion next to the block.

.ein upper Wood block, or bloclr termed of cuitahle material, isdesignated 12 and Eterial Il'tloi lit k859i clamps l3 and l lserve theusual purpose, in applying mechanical pressure,

Connecting with upper block 12 is a thicln ness of sheet rubberdesignated 1.5, and below this element to is another thickness ofrubber, which may consist of a section of a used rubber tube, with thestem 17 ot the air valve still attached The layer oi sheet rubber lastrel-erred to is shown at it and a plurality of additional layers 18 arepro" vided, all 0t these layers or sheets being retained by bolts 22 andit?) and nuts such as 2d Passing through the bloclr 153 are other bolts26 engaged by nuts 527K The lower Walls oi the air chamber expand underair pressure, and produce the deflected portion shown at 31, when air isintroduced through valve stem 17', the fluid pressure supplementing themechanical pressure, and producing, in practice, higlily satisfactoryresults especially Where diilicult conditions are encountered What isclaimed is:

A device of the character describeth noun prising an upper bloclr,flexible means connected with the under side thereot providing an airchamber, devices for eil'ecting this connection an inlet connection forthe chamber, a lower bloclt movable to position Within the secured edgesof the flexible ineans and devices for connecting the blocks andapplying mechanical pressure thereto.

In testimony whereof I cilia my signature.

